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Badr, Gamal Moursi (Spring 1978). "Islamic Law: Its Relation to Other Legal Systems". The American Journal of Comparative Law. 26 (2 – Proceedings of an International Conference on Comparative Law, Salt Lake City, Utah, 24–25 February 1977). American Society of Comparative Law: 187–198 [196–98]. doi:10.2307/839667. JSTOR839667.